Exowatt
PrivateLast Round
Series A
Extension
Nov 13, 2025
Total Funding Raised
$140M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Exowatt is a renewable energy company that develops modular thermal energy storage systems designed to provide reliable, dispatchable power for energy-intensive applications such as data centers.
Sector
Energy & Sustainability
Verticals
Energy Storage, Renewable Energy, Cloud Infrastructure, Smart Grid
Business Model
B2B
Customer Profile
Services & Consulting, Hardware Sales
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Exowatt Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
Exowatt Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A Extension | Nov 13, 2025 | ||||
| Series A | Apr 22, 2025 | ||||
| Debt | Apr 22, 2025 | ||||
| Seed | Apr 22, 2024 |
Exowatt Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Seed, Series A |
| Overmatch | Series A Extension |
| Manhattan Venture Partners | Series A Extension |
| Thrive Capital | Series A |
| Climate Capital | Seed |
| DeepWork Capital | Series A Extension |
| My Climate Journey Collective | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 31, 2026
Announced new campus in Austin, Texas.
- Jan 23, 2026
Attended the Pacific Telecommunications Conference (PTC) in Honolulu.
Exowatt Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Exowatt's valuation, stock price, and market status.